I believe that the bible is the Word of God. The bible discusses angels, demons and magic. They are all clearly different. Angels are heavenly and do the will of God. Demons are earthly and do the will of the devil. Magic is what humans use to deceive other humans, and would also be considered a work of the devil as he is considered the “father of lies”.
The bible is clear that we are involved in spiritual warfare all the time, I believe that is true, but I also believe that the spiritual war does not manifest in clearly understood ways.
As far as this goes, I don’t see any difficulties for Christians. I have faith in Christ. Jesus taught on angels, controlled demons, disregarded magic but performed “miracles” (I would argue that these were not miracles in Jesus’ eyes, just part of being God and he purposely tried to avoid recognition)…Jesus even teaches on aliens if you interpret Gentiles to mean any intelligent being that is not a Jew (see John 10:16). Anyway, those that have faith in Jesus would not find any of these things difficult, just not important in terms of continuing in their faith (or at least that’s how I see it).
If you’re looking for some mind-blowing epiphany, this is probably not the right site. This site tends to ignore fantasy/spirit world stuff and focus on science (theology sways toward atheism, but not always). I say that not to be rude, but realistic. I can see that you put a lot of effort into it, I wish I could be more encouraging. Good luck.